T2150 Series
1.7 STN Color LCD (T2150CDS)
The STN Color Liquid Crystal Display (LCD) contains an LCD module, a Fluorescent Lamp
(FL), and an FL inverter board.
1.7.1 STN Color LCD Module
The T2150CDS STN color LCD is backlit and supports 640x480 pixels with a Video control-
ler. This video controller includes the functions of Video Graphics Array (VGA).
The T2150CDS’s LCD receives vertical and horizontal synchronizing signals, 16-bit data
signal, 8-bit upper block data signal, 8-bit lower block data signal, and has a shift clock for
data transmission. All signals are CMOS-level compatible.
The STN LCD is shown in figure 1-7. The specifications for the LCD are described in table
1-4.
Figure 1-7 STN color LCD
Table 1-4 STN color LCD specifications
Item Specifications
Number of Dots (dots) 640x480
Dot pitch (mm) 0.33x0.33
Display area (mm) 217.2 (W)x164.4 (H)
Contrast (Typically) 20:1
FL current (mA) 5.0
FL frequency (KHz) 40
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